#AAC0BB
Closest named color: Silver (#C0C0C0). oklch(79% 0.025 180.4), rgb(170, 192, 187).
Aa
Black text reads best on this color (10.96:1).
About this color
#AAC0BB is a light close to neutral grey. In OKLCH its lightness is 79%, its chroma 0.025. It has too little chroma to lean warm or cool. The nearest named color is Silver (#C0C0C0), ΔE 0.031 away. Black text reads best on it, at 10.96:1.
| Hue family | Neutrals |
| Lightness | light (79%) |
| Chroma | close to neutral grey (0.025) |
| Temperature | neutral |
| Nearest name | Silver (#C0C0C0) |
| Black text | 10.96:1 |
| White text | 1.91:1 |
Values
| HEX | #AAC0BB |
| RGB | rgb(170, 192, 187) |
| HSL | hsl(166, 15%, 71%) |
| OKLCH | oklch(79% 0.025 180.4) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #AAC0BB | 1.91:1 | Fails | Lc -40.9 | Non-text elements, placeholder text |
| Black text on #AAC0BB | 10.96:1 | AAA | Lc 67.3 | Content text, not long reading |
| #AAC0BB text on white | 1.91:1 | Fails | Lc 36.6 | Non-text elements, placeholder text |
| #AAC0BB text on black | 10.96:1 | AAA | Lc -65.9 | Content text, not long reading |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 300.
-
Step 50
50
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E5EBEA
oklch(93.5% 0.007 185.3)
-
Step 200
200
#D0DCD9
oklch(88.5% 0.014 179.4)
-
Step 300
300 (this color)
#AAC0BB
oklch(79% 0.025 180.4)
-
Step 400
400
#86A9A2
oklch(70.7% 0.04 181.6)
-
Step 500
500
#67948B
oklch(63.1% 0.051 180.8)
-
Step 600
600
#4D7E75
oklch(55.5% 0.055 181.2)
-
Step 700
700
#3E6B62
oklch(49.2% 0.052 179.8)
-
Step 800
800
#335750
oklch(42.7% 0.043 180.4)
-
Step 900
900
#2D4842
oklch(37.8% 0.035 178.8)
-
Step 950
950
#1B2A27
oklch(27% 0.021 180.8)
#AAC0BB with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #BEBDBB | 0.027 |
| Deuteranopia (no green cones) | #B9BABB | 0.024 |
| Tritanopia (no blue cones) | #A5C1BE | 0.007 |
| Achromatopsia (no color) | #BBBBBB | 0.025 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AAC0BB
#AAC0BB
oklch(79% 0.025 180.4)
- #C9B4B9
#C9B4B9
oklch(78.9% 0.025 1.5)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #AAC0BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Silver #C0C0C0 ΔE 0.031
- French Gray #ADB5BD ΔE 0.031
- Cloudy Blue #ACC2D9 ΔE 0.042
- Light Grey Blue #9DBCD4 ΔE 0.043
- Ash Gray #BFC8AD ΔE 0.044
- Light Cornflower Blue #98C1D9 ΔE 0.045
- Light Steel Blue #B0C4DE ΔE 0.050
- Tiffany Blue #94D2BD ΔE 0.052
Use #AAC0BB in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.